Each day of practice seems to present a different trio at linebacker, with the Giants’ listed depth chart almost obsolete and the coaches playing a version of linebacker roulette to find the best combination.

Those adjustments have recently included veteran Keith Bulluck, whom the team signed to play middle linebacker, taking all his reps at the more familiar outside linebacker spot. Clint Sintim has received competition for his strong-side linebacker spot and Gerris Wilkinson and Michael Boley have been interchanged on the weak side.

The goal, coach Tom Coughlin said, is “to try and find the best situational players.” But a message could also resonate with a player such as Sintim, a talented 2009 second-round pick who has been slow adjusting to a new position.

“I just think that the competitive aspect of it is the way we’ve gone at it all camp,” Coughlin said, “and if that creates a little bit of competition over there, then so be it.”

Bulluck came to the Giants’ training complex Tuesday morning and was told he would now play outside linebacker. The 11-year veteran viewed it as a chance to display his versatility. Sintim took the move as an opportunity to work with someone who played the position for a decade and said he is not bothered by the competition.

“I embrace it,” he said. “You got a guy who’s been in the situation for so long, he’s a great dude, a great asset, helps me out every chance I get.”

Bulluck has practiced as a strong-side linebacker, although that spot in the Giants’ defense lines up where the weak-side linebacker traditionally plays. The terminology is even confusing to Bulluck, who said he is playing the same position he played with the Titans but did not know what to call it.

Asked when he would like to know what his role is, Bulluck joked “two weeks ago.” He said he does not view himself as a starter or backup — just the new player in the group.

“I think they’re just seeing all the options that they have,” Bulluck said. “If I’m a starter in this defense, that’s what I’m working toward with the limited reps I have. I feel like I’m too talented not to play. So, we’ll see.”

Bulluck’s move from the middle opens space for Jonathan Goff, who started four games last season but has been largely undistinguished during his first two seasons in the NFL. Goff did not have an issue with different players shuffling on the inside and outside, and fellow linebacker Bryan Kehl said the two outside linebacker spots are not much different in the Giants’ system.

“Right now, we have nine linebackers, and each of us have different assets to bring to the table,” Kehl said. “When you’re game planning as a coach or a coordinator, you can look at what you want. Either try to attack or, conversely, defend on a given play. It’s kind of like having different weapons in the arsenal.

“Some guys are faster and more athletic. Some guys are bigger and more physical. The coaches are just trying to find the best combinations.’’

Those combinations remain fluid every day. One day, Bulluck is lining up with the first team. The next day, it’s Sintim. One day, Wilkinson is with the first team. The next day, it’s Boley.

Goff has been with the first team, although he entered camp behind Bulluck. All the moves left him with a sentiment about the rotation that remains a certainty among the Giants’ linebackers.